He shared his latest black-and-white portrait on Saturday, which featured a naked Stewart covered by nothing but a white towel loosely draped over her right shoulder. A peek of her left shoulder and right butt cheek can be seen as she lifts her right arm behind her head and masks her exposed breast with the other hand.

On his website, Testino explains that Towel Series started after he took note of Kate Moss sitting in a white robe with a towel wrapped around her head during a photo shoot.

He describes the portraits as "a liberating lens." "I think guys and girls feel this freedom at being able to express themselves because there is no predetermined way of how they should put the towel on," he writes. "You can do anything you want… wear it however you want."

The 25-year-old actress has spoken about gaining more confidence in recent years, and this latest photo shoot makes that extremely obvious. In the August issue of Marie Claire, Stewart admitted that she recently cut her hair because she didn’t want to look "sexy" anymore.

"My hair was such a crutch. I looked quote unquote 'sexy' no matter what," she explained. "I could hide behind it. As soon as I didn't have all that hair, I had to let my face hang out. I felt more confident than I had in a really long time. And it felt really good."

Despite that intention, Stewart is looking pretty sexy with both long and short hair.